Hello I just purchased a 1947 type 45 . Runs like a sewing machine . Brakes stick and front end is wobbly when hitting a bump in a turn . I guess my first issue is the lights don't work ... the siren does and the beacon on top turns but doesnt light up no taillight headlights or pump lights is one issue . The guy I bought it from suggested replacing the rubber brake lines to fix the brake sticking issue he replaced the hydrovac and wheel cylinders and master . Also I am very mechanically inclined just not with 6 volt positive. Any help would be appreciated. I'm new to owning old Mack's but love to wrench just looking for some advice I guess . .